Telecontrol autobiradiography for gastrointestinal tractThe present invention is a kind of Medical Instruments, is used for gastrointestinal double contrast radiograph (i.e. gas barium radiography).
In the last few years, the existing at home part hospital of remote control x-ray tv device brought into use, and it makes X lineman author when carrying out gastrointestinal examination, no longer is subjected to X line direct irradiation, in the telecontrol room patient is checked safely.Meanwhile, the gastrointestinal double contrast technique is just adopted by numerous domestic hospital.Under the appointed condition that uses the remote control x-ray tv device, the quality and the efficient of pipe intestinal barium meal checking all are improved.Double contrast radiography of colon inspection only, medical and technical staff are so far still by X line machine, directly expose to the sun and penetrate under the X line, irritate barium with traditional methods such as well-bucket, control the barium agent with vascular forceps or knob and inject, pinch gas injection with the air bag hands, its complex operation, waste time and energy, and make the operator accept bigger roentgen radiation x, the radiography quality is also owing to differ greatly different with ability of proficiency level of operator.
Purpose of the present invention solves existing reperfusion mode exactly, so that adapt to the characteristics of New X line television equipment better, and solves medical and technical staff's protection question and improves the double contrast radiograph quality.
The main frame of this novel telecontrol autobiradiography for gastrointestinal tract adopts electromagnetic pump as the air feed source of the gas, the pressure of air feed electromagnetic pump output can be adjusted main frame by pressure-regulating valve flow straightener and Pressure gauge a cover control gas circuit, link to each other with the contrast agent jar that hangs on the main frame capable of hoisting by direction valve (two two-position three way magnetic valve with two check valves), contrast agent jar heap(ed) capacity is 1,000 milliliters.It with the intake line of control gas, control barium check valve with inflation, fill the barium output duct and link to each other.There is a conduit replace tubes joint at the output duct place, different conduits when switchable stomach and various bowel radiography.
This telecontrol autobiradiography for gastrointestinal tract and remote control x-ray tv matched with devices are used, and can solve various types of maneuver reperfusion modes of used gastrointestinal (especially colon) double contrast radiograph and the unconformable problem of New X line television equipment in successful merit ground.Solve the operator and accepted more heavy dose of roentgen radiation x problem.Because the injection pressure scalable, the perfusion flow velocity is even, and what adopt during perfusion is pneumatic stirring, can make contrast agent be in suspension, does not precipitate, and has solved the radiography quality owing to operator proficiency level and the different problems that differ greatly of ability.
Fig. 1 has represented the sketch map that telecontrol autobiradiography for gastrointestinal tract and remote control x-ray tv matched with devices are used.Wherein:
1,2 is the remote control x-ray tv device
3 is the telecontrol autobiradiography for gastrointestinal tract main frame
4 is control switch far away
5 is examinating couch
Fig. 2 is the control gas circuit sketch map of this radiography device main frame.
After preparation before radiography (as: intubate, contrast agent are packed into and contained jar etc.) is carried out, start host power switch (with the Pressure gauge unification), electromagnetic pump 1 work, produce 0～160 mmhg pressure, its pressure can transfer to filling barium by pressure-regulating valve 2, aeration gives and decides force value, and Pressure gauge 3 shows force value.
When irritating barium, press the filling barium switch on the control box far away, 4 work of control barium two-position three way magnetic valve, gas enters contrast agent jar 9 from the D pipe of five-way body 5 through control barium two-position three way magnetic valve 4, check valve 7, Hacebar is under gas pressure in jar, can stir automatically, make contrast agent be in suspension, contrast agent injects anal canals and constantly injects in the intestinal tube through gas barium tee T 10.(when carrying out the double intestinal air-barium double contrast radiograph, then inject the small intestinal conduit in the changing-over, and constantly enter in the small intestinal.) after the patient thinks to reach ideal barium amount, close and irritate the barium switch, control barium two position three-way valve quits work, and the barium agent is stirred and is stopped automatically, irritates barium and finishes.
During aeration, press the aeration switch, 6 work of control gas two-position three way magnetic valve, give and decide pressure-sustaining gas and enter the contrast agent jar through C pipe, control gas two-position three way magnetic valve 6 check valves 8 from five-way body 5, enter anal canal or little intestinal tube through gas barium tee T 10 again, after reaching desirable tolerance, press shutdown switch, gas injection finishes.